BMT Mini Solenoid Lock 12V DC - Compact Electric Bolt Lock

The BMT Mini Solenoid Electric Lock is a compact, reliable DC 12V instant-action bolt lock designed for electronic access control and automation projects. Featuring a 100% copper solenoid coil and all-metal construction, this lock provides fast, dependable unlocking the moment power is applied and automatically re-locks when power is removed.

Its small size, low power consumption, and simple operating principle make it ideal for DIY electronics, smart cabinets, lockers, drawers, enclosures, and security projects where controlled access is required.

Product Overview

This mini solenoid lock operates on a power-to-unlock, power-off-to-lock mechanism. When a 12V DC supply is applied, the internal solenoid retracts the bolt instantly, unlocking the mechanism. Once power is removed, the bolt automatically extends, securely locking again without the need for springs or motors.

Because the solenoid is designed for short activation periods, it consumes minimal energy and delivers fast response, making it especially suitable for battery-powered systems, Arduino, Raspberry Pi, relay modules, and access control circuits.

Important: This solenoid lock is designed for momentary operation only. Continuous power or rapid repeated activation may cause overheating and reduce lifespan.

Key Features

• Instant Electric Unlocking: Unlocks immediately when power is applied, locks automatically when power is removed
• Compact & Lightweight: Small form factor allows easy integration into tight spaces
• All-Metal Construction: Electroplated metal body for durability and rust resistance
• 100% Copper Coil: Ensures stable performance and efficient operation
• Low Power Consumption: Designed for short bursts of power, saving energy
• Pre-Wired Leads: Comes with approximately 37cm power cable for easy installation
• Wide Application Range: Suitable for cabinets, lockers, drawers, boxes, and electronic enclosures

Operating Guidelines

• Momentary Power Only: Recommended power-on time 5 seconds
• Avoid Frequent Operation: Minimum recommended interval between unlocks is 2 minutes
• Not for Continuous Duty: Continuous power may cause overheating and damage

These guidelines ensure long service life and reliable performance.

Specifications

• Working Voltage: DC 12V
• Working Current: 0.35A
• Consumed Power: 12W / 28.8W
• Unlock Time: 0-10 seconds
• Recommended Power-On Time: 1 second
• Maximum Allowed Power-On Duration: 10 seconds
• Bolt Length: 15mm
• Working Style: Unlock on power / Lock when power off
• Dimensions: 27mm × 27mm × 16mm
• Net Weight: 0.17kg

Typical Applications

• Electronic lockers and cabinets
• Smart storage boxes and drawers
• DIY security and automation projects
• Arduino / Raspberry Pi access control systems
• Vending machines and enclosures
• Safe-deposit boxes and retail lockers

The BMT Mini Solenoid Lock 12V offers a simple, effective, and compact solution for electronically controlled locking systems. Its fast response, solid metal build, and ease of integration make it an excellent choice for both hobbyists and professional system designers.

What's in the box
1 x BMT Mini Solenoid Lock 12V DC - Compact Electric Bolt Lock